Shining type logic pen circuit (CD4069) composed of the gate circuit

Published:2011/5/26 6:54:00 Author:Christina | Keyword: Shining type, logic pen, gate circuit | From:SeekIC

The logic pen also called the logic detection probe, it is the common tool to detect the various point's logical state of the digital circuit. The digital circuit has three kinds of logical state: the high electrical level 1 , the low electrical level 0 and the high resistance state . The test result of the logical state can be displayed by the LED and the sounder, also you can use the digital led to display it. The logic detection pen which is composed of the six inverter CD4069 and the LED is as shown in the figure.



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